Electrical valve.



J. W. BEGKVVITH.

ELEUTR-IGAL VALVE.

APPLIGATION FILED SEPT. so, 1912.

Q, LGQUQGZ, Patend Mar. 24, 1914L ',oLumnlA vLAxomzAml co., WASHINGTON. n. c.

/ ""*HMA TEU TATE@ PATENT JOI-IN W. BECKWITI-I, OF SPOKANE, WASHINGTON, ASSIGNOR OF ONE-HALF TO II. A. &

L. D. HOLLAND COMPANY, 0F SPOKANE, WASHINGTON, A CORPORATION OF VASH- INGTON.

ELECTRICAL VALVE.

Specification of Letters Patent.

Patented Mar. 241, 1914.

b all whom it may concern.'

Be it known that I, JOHN W. Bnonwrrrr, a citizen of the United States, residing at Spokane, county of Spokane, and State of lVashington, have invented certain new and useful Improvements in Electrical Valves, of which the following is a speciiication.

lThis invention relates to electrical valves.

The present invention has for its object the provision of an improved electrically operated valve of simple, inexpensive, durable, and reliable construction, adapted for controlling the fiow of gases, air, steam and other fluids which can be used when in any positio-n, and will maintain either open or closed position by the utilization of a teml porary electrical current without the employment of springs, moving electrical contacts, locks, catches, ratchets or other similar appliances which are liable to get out of order.

The invention consists in electro-magnets adapted for independent energization, permanent magnets under the control thereof, a valve and an armature for said valve which is under the control of the magnets aforesaid.

In the accompanying' drawings: Figure 1 is a vertical section Fig. 2, a cross section on line 2 2, Fig. 1; and Fig. 3, a cross seo tion on line 3 3, Fig. 2.

The outer cylindrical shell 1, which is preferably of non-magnetic material, has screw threaded couplings 2 and 3 for connection to the pipe sections through which the gas, air, steam or other fluid is to pass and is provided with a valve seat 1 at one end ancll a screw threaded head 1EL at its other enc.

Located within the shell 1 is a metallic shell 5, preferably of iron, which has a removable end 6 on which the electro-magnet coil 7 rests, the terminals of said coil being connected to contact buttons 7, 7b on end 6 which engage contact buttons 9 and 10 on shell 1, which are insulated from shell l. In the other end part of the shell 5 is an electro-magnet coil 11 which is held by a removable head 12, the terminals of said coil being secured to buttons 11a, 11b, on head 12 which engage contact buttons 13 and 14 both insulated from, but connected to shell l. The coils 7 and 11 are differentially wound, that is, the greatest number of layers of the coil 7 are connected in series to a lesser number of layers of coil 11 and vice versa. Extending centrally within coils 11 and 7 are the solid steel core 15 and the tubular steel core 1G," the former being secured to the head 12 and the latter to the head G. Slidable within the core 16 is a stem 18 to which is attached a disk armature 19 which is adapted to play between the poles of the cores 15 and 1G. Pivoted to stem 1S at 18a is a valve stem 20 carrying valve 21 which is adapted to rest in seat 4 when the armature 1S) is attracted by the P01@ 15- w133,213,137.@tingthestem.2.0,ithepropen ,Qllhe valve` 42l, 11su1 e.d The buttons 7a, 7b, are at right anglesto buttons 11a, 11b, so that by tightening the head 1a, the shell 5 is securely clamped in position, being surrounded by the gasway 17. The valve is preferably arranged to open against the flow of gas, air, steam or other Huid, to assist in its closing operation, but when the device is arranged vertically, gravity also assists in the closing operation. The device may be arranged vertically, horizontally, or 1n any other position without interfering with its operation.

IVhen the coil l1 is energized, its core attracts the armature and opens the valve, the permanent magnetism of the corelilding pemvfheifthe"coi?? is energizd'tie armature is attracted by the core thereof and the valve closed, the permanent magnetism of said core keeping the valve closed until the coil 11 is again energized.

Any suitable switch mechanism and circuits can be used to control the respective coils 7 and 11. Instead of winding the coils 7 and 11 differentially, each may be wound as an ordinary electromagnet and included m a separate, switch-controlled circuit.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In an electrical valve, the combination with an outer shell provided with a valve 100 seat, of an inner shell of smaller size than the outer shell, indepndent electroma coils contained within saidwiiiiifshell, la'et magnet cores for said coils, a bodily movable and slidable armature adapted to l05 play between the ends of the coils, a valve adapted to bear on said seat, and a valve stem connecting said valve and armature and extending loosely through one of the cores, said permanent magnet cores retain- 11e ing the armature when attracted by them and thereby maintaining the valve Where positioned.

2. In an electrical valve, the combination With an outer shell provided with a valve seat, of a detachable clamping head for said shell, Contact members on the shell and also on the detachable head aforesaid, and a selfcontained electricallv operated valve mecha lf) nism located Within the shell but also bodily -removable therefrom Whose valve is adapted to coperate with the seat aforesaid, said H. A. HOLLAND, L. D. HOLLAND.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents;

Washing-ton, D. C. i 

